Please explain to me what Nationwide "emergency" exists, other then the one I mention later, that justifies this new procedure.

I mean amber alerts are local, and right now fairly inept in their handling, if these become nationwide, they will quickly become routine, ignored and useless.

For instance, what real difference individually would this notice have made on say 9/11?

I kinda like having the media involved, as that means we have thousands? of connected well placed reporters digging into a situation, vs one single source, controlled by one person, with a virtual monopoly of the message being disseminated.

Only advantage I see for this system, is mass simultaneous acquiesce of the entire nationwide populace, when declaring Martial law, and the accompanying restriction of freedom of the press, freedom of assembly, etc in a contrived "emergency", with one single phone text.

First you find a demon, then call them a Mob, and then justify the need to seek "security". Text follows.